Float valve for flush tanks



Jan, 13.

- J. M. FLEMING FLOAT VALVE FOR FLUSH 'm'ms 2 Sheets-Sheet 1 Filed Jan. 17, 1925 rlllllll'lllz (llfllllllllllllllllll (U, 56 i ll INVENTOR Jf/W. FZ /NG,

ATTORNEYS J l3. 1 925. v

v .1. M. FLEMING FLOAT VALVE FOR FLUSH TANKS Filed Jan. 17. 1923 2 Sheets-Sheet 2 Y F'LEM G,

Arm/mm Patented Jan. 13, 1925.

JOSEPH M. FLEMING, OF DENVER, COLORADO.

FLOAT VALVE FOR FLUSH TANKS.

Application filed January 17, 199.3.

To all whom it may concern:

Be it known that I, J OSEPH M. FLEMING, a citizen of the United States, and a resident of Denver, in the county of Denver and State of Colorado, have invented certain new and useful Improvements in Float Valves for Flush Tanks, of which the following is a specification.

This invention relates to flush tanks and has for its object the provision of a device which is simple in construction and noiseless in operation.

A-further object of the invention is the provision of a device having a float controlled valve for admitting water to a flush tank and adapted to control an inlet port, the inlet port being of sufficient proportions to freely admit Water to the tank with the vvalve having an instantaneous closing action as it nears the closing position.

Another object of the invention is the provision of a device having the valve seat for the inlet valve constructed of glass and the supporting parts for the inlet valve so formed that said valve and the supporting parts are bodily removable from the tank.

A still further object of the invention is the provision of a noisless float valve and an improved bowl refilling pipe which may be readily substituted for similar parts of the well-known constructions now in use.

Other objects and advantages will appear during the course of the following description.

The invention is illustrated by way of example in the accompanying drawings, in which,

Figure 1 is a sectional view of the tank showing a flush ball in closing position.

Figure 2 is a transverse horizontal section of the same.

Figure 3 is a sectional view of the supply pipe and the inlet valve casing.

Figure 4 is a fragmentary view in section of the flush ball valve seat.

Figure 5 is a view in perspective of the removable bracket for supporting the trip lever.

Referring to the drawings, 1 designates a flush tank and 2 a cover for the same.

A threaded inlet pipe 3 is integrally formed with a valve chamber 1 and is screwed into a threaded opening in the bottom 5 of the tank 1. A plug 6 forming a battle is threaded into the upper open end of the inlet pipe and provided with dia- Selial No. 613,154.

metrically disposed perforations 7. A cen tral passage 8 in the plug connects the perforations with the inlet pipe 3.

The chamber 4 where integrally formed with the inlet pipe 3 forms a shoulder which engages the bottom 5 of the tank. Nuts 9 and 10 draw the chamber 4: tight against the bottom 5 and lock the members 3 and 1- to the tank.

A union 11 connects the threaded end oi the inlet pipe 3 with the threaded end of a supply pipe 12 which is in turn connected with a source of water supply.

The extreme upper end of the valve chamber A is open and externally threaded to receive the internally threaded nut 13 which has upwardly extending arms 1% and 15 forming a bracket. The arms 1 1 and 15 are provided with laterally extending and integrally formed members 16 in which is mounted a pin 17 A bridge 16 connects the upper ends of the arms 14 and 15 where the laterally extending members are formed integrally with the said arms.

The nut 13 is provided with an annular flange 18 adapted to engage the horizontal flange of the conical glass seat 19 and clamp the same on the upper end of the valve chamber a. The lower end of the conical seat 19 is open and adapted to be engaged by a rubber gasket 20 of the cup-shaped valve 21 which threadedly engages the stem 22. The stem is slidable in a guide 23 formed at the center of a web connected to the inner wall of the nut 13. The gasket is of sufficient diameter to, embrace the open end or the cone 19 and prevent water from entering the tank 1 when the tank has a sufiicient depth of water to raise the float 24.

A trip lever 25 is pivotally mounted on the pin 17 intermediate its ends and is provided at one end with a yoke 26 straddling the valve stem 22 and engageable with a stop or trip ring 27 rigidly secured to said stem.

The outer end of the trip lever is connected by a link 28 to a flush ball lever 29. This lever is pivotally mounted at 30 on a side wall of the tank 1. The outer end of the lever is extended parallel to said side wall and is adapted to be engaged by an angular extension of an operating shaft 31. A hand grip 32 is connected to that portion of the shaft 31which extends outside of the flush tank. On the extreme upper end of the stem is mounted the float 24. which oii'setsocket 38' formed integrally with the seat 34andits-axis is parallel withthe axes elf-the outlet port and the inlet pipe 3; A passage 39 connects the overflow pipe 37 with the outlet-port. As shown in Figure l the upper endofthe overflow pipe is located at. thewat'er level 40in the tank. A perforation 41 is provided in the overflow pipe 37 to admit Water. to said pipe for filling the usuallhowlof; a toilet.

The. flush ball 35 is provided with a stem 42 which has a sliding connection with .a

link43, they link being connected to the inner end, of. the flush ball lever 29. As shown more partioularly in Figure 2, the lever 29 is curved inwardly. towards the overflow pipe 37 whereby the link 43 will have a vertical movement in order to properly seat the flush ball 35.

The operation ofmy device is as follows:

Asshovvn in Figure l, the tank 1 isfilled with'water with the flush ball valve 35 located. on its seat and the valve member 21 held against the glass seat 19 of the inlet pipe. 3by the pressure of the water in said pipe- When the handle 32 is actuated ant one end of the lever 29 is depressed the gasket 20 of the valve 21 will be forced away from the, seat 19 since elevation of the inner end, ofthe lever 29 willraise the link 2.8,.the outer end of the trip lever 25 and cause the yoke 26 of the trip lever to force the valve stem 22downwardly by reason of the engagement of the yoke with the stop 27. A continued elevation of the inner end of the lever 29 will cause the eye 45 or the link 43 to engage the eye 46 of the stem42 and raise the flush ball from its seat 34 thereby releasing water from the tank. Continued lowering of the water in the tank 1 willpermit the ball 35 to returnto its seat and close the main outlet from the tank 1' to the pipe 33. Since valve 20 has been removed from its seat in the lower end of member 19, water from the usual source of supply to the house is flowing. in to tank 1 through the opening in the member l9. The.

float 24 is elevated with the rise of the water in the tank 1 and when thefloat reaches the position. shown in Figure 1 and the water is at the level and at the top of the pipe 37 the valve 20 will'be closed upon its seat (2 the cone-shaped member 19 and thereby prevent any other water from entering the tank. The perforation 41 which is locatedbelow the upper open .end of pipe 37 will permit water to drain from the tank 1 andliow into the seal of the bowl thereby providing a positive means for filling said seal; As soon'asthe level of the water reaches the perforation 41 the water from the tank will stop flowingwhile the-valve 20 will be maintained on" its seat at the lower reduced end of the member 19-and maintain the float 24in an elevated position i at the perforation 41; the sides of the valve 20, the weight of the parts connected with the valve, and thepressurebt the water in above the level of the water which is now the valve cage'4 is suliicient to maintain the 7 valve upon its seat.

It willbe seen from such av construct-ion thatas soon as the handle 32 isoperated for operatingthelever 29 the valve-20will be instantly released fromits seat on: the memher 19'and per-mitwater to flow into the tank, and since the valve35-is operated -to open: position water will be rapidly dischargedfrom the tank.

Thequick closing action of thevalve21 on the glass seat 19 provides a noiseless operation of the tank and prevents-thesinging noise which usually accompanies such constructions where water is allowed to force its way past the valve seat of the fiut tering valve, when the float has reached-its most" elevated position in the flush tank.

What I claim is: 1.111 a'device of the character-described,

a tank, a supplypipe, a valve chamber connected withthe supply pipe, anoutlet port, a valve having a vertical stem adapted to close the outlet port, a float connected at the opposite end of the stem, anoutlet port forthe tank, a flush ball adapted to closeythe outlet port, a vertically disposed conduit having its upper end open projecting above the normal level ofhthe watenwhen the tank is full and in communicationwith the outlet'port, said conduit being provided with a perforation to per? mit the water, in the tank to be lowered through the perforation sothatthefioat is maintained above the 'levelof thewater by the pressure of the water'on the inlet valve whereby said inlet" valve may beeasily' actuiated, andmeans operativelyconnected with the valve stem and the flush ball for causing the valve to be opened and the flushba-ll removed from'the outlet port.

2; In a'device of the character described, a tank, a supply pipe, at ivalve ch'amber connected with th'essupplypipe, an outlet port,

a valve having a vertical-stem adapted to close the outlet port, a-fioatconnected at the oppositeend of the stem, air outletportfor the tank, a flush ball adapted to close the outlet port, a vertically disposed conduit having its upper end open projecting above the normal level of the water when the tank is full and in communication with the outlet port, said conduit being provided with a perforation to permit the water in the tank to be lowered through the perforation so that the float is maintained above the level of the Water by the pressure of the water on the inlet valve whereby said inlet valve may be easily actuated, and means operatively connected with the valve stem and the flush ball for causing the valve to be opened and the flush ball removed from the outlet port, said inlet valve being of sufficient diameter to maintain the inlet valve closed.

3. In a flush tank, a valve chamber, an inlet pipe formed integrally with the valve chamber, a perforated plug in the inlet pipe forming a restricted communication between the inlet pipe and valve chamber, said plug projecting into the valve chamber, a nut screwed to the upper threaded end of the valve chamber and provided with a central bearing, a valve stem slidable in the bearing, a valve mounted intermediate the ends on the valve stem, a glass valve seat mount ed on the upper end of the valve chamber, held thereon by said nut and adapted to be engaged by the valve on the slidable stem, a float connected with the stem, means for forcing the valve away from its seat, an outlet port, means for controlling said port, said means for forcing the valve away from its seat adapted to move the controlling means for the outlet port away from said port.

JOSEPH M. FLEMING. 

